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Caleffi 309470 CST Temperature & Pressure Relief Valve

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Caleffi 309470 CST Temperature & Pressure Relief Valve

Caleffi 309470 CST temperature and pressure relief valve rated at 7 bar, with a 1/2" MBSP inlet and 15mm outlet connection.

At a glance

  • Also known as 2081225
Manufacturer part no.
061-475-0700
Showing prices

£44.64

£37.20 ex. VAT · VAT at 20%

Available to order · 1 working day
Available to order · 1 working day
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question

Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The Caleffi 309470 CST is a temperature and pressure relief valve with a 7 bar set pressure, a 1/2" MBSP inlet and a 15mm outlet connection. It discharges water from a stored hot water vessel when either the temperature or the pressure rises above the valve's set limits. It is a Caleffi part, catalogue number 309470, from the CST range.

Before you order

  • Check the set pressure required by the cylinder or vessel — this valve is rated at 7 bar.
  • Confirm the connection sizes match the installation: 1/2" MBSP inlet and 15mm outlet.
  • Check the appliance manufacturer's instructions for the specified relief valve rating and type before ordering.
  • Quote the SKU 061-475-0700 when querying this item.

Not sure which part?

Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.